Correct scientific notation for any number begins with a coefficient whose value is greater than one and less than _.

Harvey kept a balloon with a volume of 348 milliliters at 25.0˚c inside a freezer for a night.  when he took it out, its new volume was 322 milliliters, but its pressure was the same.  if the final temperature of the balloon is the same as the freezer’s, what is the temperature of the freezer? the temperature of the freezer is  kelvins.

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume